GYA.V = 880,000 Gold Ounces Historical mineral resource estimates
Hard rock (meta-chert)
A historical estimate of gold contained in the hard rock (meta-chert) from two main development sites (Mazoa Hill and Marudi North) is 880,000 ounces. The estimate was prepared by R.P. Ilchik in March, 2004, and estimated 760,000 ounces in the Mazoa Hill area using 4.7 million tonnes grading five grams per tonne based on bench volumes and quartz outcrops. In the Marudi Mountain area, this report also referenced 1.4 million tonnes containing 3.8 million grams of gold (120,000 ounces of gold) grading 2.7 grams per tonne. Both sites are open to further exploration in several directions.
A report prepared by Kilborn Engineering Pacific Ltd. (1995) on the Mazoa Hill area estimated 3,381,081 tonnes grading 2.94 grams per tonne containing 9,940,378 grams of gold (318,595 ounces of gold) at a cut-off grade of one gram per tonne gold in the measured and indicated categories, and 860,924 tonnes grading 2.45 grams per tonne containing 2,109,264 grams of gold (67,815 ounces of gold) at a cut-off grade of one gram per tonne gold in the inferred category. Total resources at the Mazoa Hill area in the measured, indicated and inferred categories were estimated at 4,242,026 tonnes grading 2.84 grams per tonne gold containing 12,047,294 grams of gold (387,335 ounces of gold) at a cut-off grade of one gram per tonne gold.